Creates the feature same_camp_score.

create_feature_same_camp_score.sql

-- Creates the feature same camp score by looking in the table tmp_user_camp, that consists of the most frequent visited camp site.
update derived_friend_features set same_camp_score=FALSE;
update derived_friend_features AS fr set same_camp_score = TRUE
where (select title FROM tmp_user_camp WHERE user_id = fr.user_a limit 1) = (select title FROM tmp_user_camp WHERE user_id = fr.user_b limit 1)
;